Holbrook is located close to the center of Massachusetts. Holbrook is part of Norfolk County. Holbrook has 7.25 square miles of land area and 0.11 square miles of water area. As of 2010-2014, the total Holbrook population is 10,925, which has grown 1.30% since 2000. The population growth rate is lower than the state average rate of 4.85% and is much lower than the national average rate of 11.61%. Holbrook median household income is $63,297 in 2010-2014 and has grown by 16.31% since 2000. The income growth rate is much lower than the state average rate of 34.34% and is much lower than the national average rate of 27.36%. Holbrook median house value is $278,300 in 2010-2014 and has grown by 86.03% since 2000. The house value growth rate is higher than the state average rate of 77.65% and is much higher than the national average rate of 46.91%. As a reference, the national Consumer Price Index (CPI) inflation rate for the same period is 26.63%. On average, the public school district that covers Holbrook is worse than the state average in quality. The Holbrook area code is 781.